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Climate Change and California's Water
California's water supply has been stable for centuries thanks to a consistent and reliable source: snow. Yet, scientists predict that if greenhouse gases continue to accumulate at the current rate and force temperatures up, the state could lose as much as 90% of its snow-pack by the end of the century. A change in climate this big could lead to failures in water-management systems throughout the state, affecting every one of us. In our documentary series, Climate Change and California's Water, we explore the implications of global warming on our levees, our plants and animals and our lives.
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Given that California is the single largest producer of many food items, these changes could be catastrophic to food production.

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* Up until the last two hundred years, atmospheric CO2 concentration had stayed between 265 parts per million (ppm) and 280 ppm according to analyses of gases obtained from ice cores that reflect the past 10,000 years.
* Atmospheric CO2 concentration at the beginning of the 21st Century is approximately 365 ppm.
* Atmospheric concentrations of carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O) have increased 31 percent, 151 percent, and 17 percent respectively since the year 1750.
* Humans added more than 270 billion metric tons of carbon (GtC) to the atmosphere since the nineteenth century.
* The natural carbon cycle emits about 60-90 GtC per year, while current levels of human-caused emissions are greater than 6 GtC per year.
* About three-quarters of human emissions of CO2 to the global atmosphere during the past 20 years is due to fossil fuel burning.

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Life is a banquet -- and most poor suckers are starving to death -- Auntie Mame
You are born naked and everything else is drag - RuPaul